Combined plaiting and scalloping device



(No Modl.)

J. S. SACKETT.

GOMBINED PLAITING AND SGALLOPING DEVICE.

No. 279,820. Patented June 19,1883.,,

} UNITED STATES PATENT OFFICE.

JOSEPH S. SACKETT, OF PLATTSBURG, NEW YORK.

COMBINED PLAITING AND SCALLOPING DEVICE.

SPECIFICATION forming part of Letters Patent No. 279,820, dated June 19,1883.

Application filed June 20, 1882.

To all whom it may concern:

Be it known that I, J osnrn S. SACKETT, a citizen of the United Statesof America, residing at Plattsburg, in the county of Clinton and Stateof New York, haveinvented certain new and useful Improvements in aCombined Plaiting and Scalloping Device; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters or figures of reference marked thereon, which 'form apart of this specification.

The first part of my invention relates to the combination of the twodevices on a single bed-plate in such a manner that they may be mostconveniently attached to the machine, and the second to so arrange theparts that both may be readily operated by a single movement, therebyobtaining a uniformity of motion common to both.

Figure 1 is a plan view of my invent-ion. Fig. 2 is an edge view of thesame. Fig. 3 is an end view.

a is the main bed-plate of the combined de vice. It is so made as tobereadily attached to the machine by means of the presser-foot b. Thisbed-platehas the two arms or extensions 0 d, which extend at rightangles to each other. A portion of the extension 0 is raised upward nextto the presser-i'oot, as shown in Fig. 3, so that it will passimmediately over the presserfoot, to which it is attached. The extension(1 forms the support for the plaiting devices. This device consists ofthe moving slide g,with an arm 71', extending forward in front of thepresser-foot, to which is attached the crimping-blade or dentatedfeed-plate 1, of which it is the support. Directly beneath the blade isthe slotted separating-blade, which is supported by an arm to which itis attached, and which is an extension of the bed-plate a.

To the upper part of the presser-foot Z1 is pivoted the slottedbell-crank lever l, with an arm, m, extending upward, to which ispivoted, at n, the rectangular pendulum-arm 0, through which ahorizontal movement is communicated to the plaiting device B, as well asto the scalloping device 0. It gives a recip- (No model.)

] rocating motion to the'slide g by its connection with and movement inthe cylinder or chamber 1) of the slide. the cylinder 19 is anadjusting-screw, q, to regulate the play of the arm 0 in its forwardmotion. As the end of the arm 0 is enlarged to meet a shoulder in thecylinder, it carries in its backward stroke the cylinder and the slide,of which it is a part, along with it. Thus always equal to that of thearm 0, less the play allowed in the cylinder 1).

Upon the bed-plate (Z rests the scalloping device G-, which consists ofa double pawl, r, operating a crank-disk, 8, through a ratchetwheel, I,to which it is connected. To the double pawl r is communicated areciprocating horizontal motion on the plate 0 by means of the arm n,which projects from the slide g, the extent of this movement beingregulated by means of the adjustable screw '0, which limits the size ofthe slot or groove 10, in which the arm pl. ys. The distance which thepawl moves is always equal to that of the slide 9, less the play allowedthe arm in the slot 10. The object of the pawl is to revolve theratchetwheel 2, carrying the crank-disk 3, one of the arms beingdesigned to push against and the other to draw upon the teeth of theratchetwheel on opposite sides asit moves forward and back. Theratchet-wheel, with crankdisk s, is pivoted on the main bed-plate a. Alittle to the right and in front of the plaiter is aslotted cross-head,a, with arms 1 and .2 extending at right angles to the right and left.It rests upon the face of the disk .9, and is operated by theadjustable'pivot 1, which moves in the slot of the cross-head m as thedisk revolves, thus giving to the arms 3 andz, held in place by loopsnear the extremities 2 and 3 of the extension (I, an intermittent motionfrom left to right, and vice versa.

To regulate the transverse movement of the arms 3 and z of the crossheadm, the position of the pivot 1 can be readily changed with reference tothe center of the disk.

A movable slotted guide, 4, is placed on the arm 3 and is held inposition by the set-burr From the guide toward the needle projects anarm, 6, at the extremity of which is a spring-loop, 7, which receivesthe material to In the outer end of the reciprocating movement of theslide 9 is same.

and position described, the fabric to be scalloped and plaited is drawnthrough the springloop in the guide 4., and thence passed between thefeed-plate c and the slotted separatingblade j. Then adjust the pivot 1to the disk s, and at a greater or less distance from its center,according to the depth and shape of the Y scallop desired. The depth ofthe scallop will vary with the extent of the transverse move ment of thearm 9 and this is greater or less, according to the increase or decreaseof the diameter of the circle circumscribed by the pivot. The object ofthe guide 4 is to change the depth of the scallop without altering itsshape. By moving it on the arm 3 to the left the depth of the scallop isincreased, and to the right it is decreased. The nearer to the needlethe fabric is brought by the spring-loop 7 the greater will be the sizeof the scallop, if the movement of the cross-head remain the Themovement of the double bell-crank I, caused by the perpendicular motionof the 'needle-bar, operates both the crimping or feed plate c of theplaiter through the arm, and also the guide 4through the disk 8, and thedouble pawl 0*, its action upon the pawl being regulated by theadjustable screw 1), so that as the fabric is caught, carried forward,and plaited for the needle by the action of the crimping or feed platei, the arm y, carrying the fabric in the guide 4, continues eachintermittent motion to the right as each plait of onehalt of the scallopis formed, and to the left until the other half of the scallop iscompleted. The number of the plaits is always equal to the number of theteeth in the ratchet-wheel 1,

whenever, by the movement of the pawl 0' forward or back, theratchet-wheel t revolves over a space equal to that taken up by a singleratchet. When the pawl moves over a space equal to two of the ratchets,the number of plaits in each scallop will be equal to one-half thenumber of the ratchets. As the space, through which. the pawl 1- earriesthe ratchet-wheel t, in creases, the number of plaits in each scallopwill correspondingly decrease.

By this simple and practical combination of my devices a uniformscallop-plaiting can be produced, and at the same time it is sewed toany material desired without the exercise of any more care or effortthan is required in ordinary sewing. The scalloper, having been properlyadjusted, guides the fabric automatically, so that the scallops of thedesired number of plaits, shape, and depth are invariably carried by theplaiter under the needle with the utmost exactness, reliability, andregularity.

This invention is intended as an improvement upon Patents No. 257, 518and No. 257,519 heretofore granted to me.

I claim 1. The combination of the presser-foot 7), lever Z, pivotedthereon, arm 0, and slide 9, having feed-plate i secured thereto, andprovided with the projection a for operating the scalloping mechanism,substantially as shown.

2. The combination of the slide g, provided with the arm a, the doublepawl, and the regulatingscre'w '11, substantially as set forth.

In testimony whereof I do affix my signature in presence of twowitnesses.

JOSEPH S. SACKETT.

\Vitnesses:

HENRY l. GlLLILAND, 2d, JOHN B. RILEY.

